FR527223A
(en )
1921-10-22
Improvements to electrical contacts
FR527864A
(en )
1921-11-03
Improvements to electrical switches
CH81373A
(en )
1919-06-02
Device for remote control of electrical switches
CH82334A
(en )
1919-09-16
Device for remote control of electrical rotary switches
CH82150A
(en )
1919-10-16
Device for remote control of rotary switches
CH97865A
(en )
1923-02-16
Process for cleaning graphite by means of an electric current.
AT91054B
(en )
1923-01-25
Device for the electrical remote transmission of movements.
CH81968A
(en )
1919-08-16
Device for operating electrical rotary switches remotely
CH82691A
(en )
1919-10-16
Device on alarm clocks for automatic switching on of electric lamps
CH82534A
(en )
1919-10-01
Electromagnetic remote control device
FR508745A
(en )
1920-10-21
Electromagnetic remote switch device
FR539749A
(en )
1922-06-30
Improvements relating to electrical switches
CH82935A
(en )
1919-11-01
Device for the production of moldings
CH83034A
(en )
1919-11-01
Remote control device for electric light switches
CH83036A
(en )
1919-11-01
Remote control device for electric light switches
CH82689A
(en )
1919-10-16
Remote switch
CH82455A
(en )
1919-10-01
Electrical device for processing statistical information
CH78229A
(en )
1918-07-01
Device for electrical heating of inevitably moving media
DK27082C
(en )
1921-01-10
Electric Remote Switch.
FR522824A
(en )
1921-08-06
Improvements to electrical switches
FR501312A
(en )
1920-04-09
Improvements made to electrical switches
FR517042A
(en )
1921-04-29
Improvements made to electrical switches
ES70645A1
(en )
1919-10-01
A system of electrical switches.
FR518815A
(en )
1921-05-31
Improvements to circuit breakers or electrical circuit breakers
FR517551A
(en )
1921-05-07
Current switch